I do not know the answer to your question. However, a side note:
The export runs for 3 hours everyday because of a very complex sql...
I do not know if this applies, but using a temp TABLE, a splitting up
the actions of the complex SQL to multiple simple SQL statements may
speed things up a bit.
I just sped up a query that took aboutone minute and forty seconds to
under a second by using a temp table instead.
B.